<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
        <title>liste</title>
        <style type="text/css">
            ul.a {
                list-style-type: circle;
            }

            ol.a {
                list-style-type: decimal-leading-zero;
            }
        </style>
    </head>
    <body>
        <ul class="a">
            <li>Prva</li>
            <li>Druga</li>
            <li>Treća</li>
        </ul>
        <ol class="a">
            <li>Prva</li>
            <li>Druga</li>
        </ol>
    </body>
</html>